Vehicle-wheel.



s.. E.- CHAPMAN. VEHICLE WHEELIV APPLICATION FILED JULY 24,1909.

Patented June 6, 1911.

WITNESSES A 1- fmf UNITED sTATEs PATENT oEEIoE. i i

SAMUEL E. CHAPMAN, or OAKLAND, CALIFORNIA, AssIGNOR or ONE-THIRD To!r WILLIAM M. WOODWARD, 0F OAKLAND, CALIFORNIA.

Specication of Letters Patent.

Application filed July 24, 1909.

VEHICLE-#WHEEL Patented June 6, 1911.

Serial No. 509,353.

To all 'whom it may concern:

Beit known thatI, SAMUEL E. CIIAPMAN, citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented certain new and useful Improvements in Vehicle- Wheels, of which the following is a specification, reference being had therein to the accompanying drawing. p

This invention relates to vehicle wheels and the principal object of the same is to provide a novel type ofspoke therefor combined with a cushioning hub through the medium of which the usual cushioning inflatable tire may be dispensed with.

In carrying out the Objects of the invention generally stated above, it will, of course, be understood that the essential features of the same are susceptible of changes in details and structural arrangements, but apreferred and practical embodiment thereof is shown in the accompanying drawings where- In- Figure 1 is a view in side elevation of the improved wheel, shown partly in section. Fig. 2 is a detail vertical sectional view showing a part of the hub and one of the spokes. l f

Referring to said drawings by numerals, 1 designates the rim of the improved wheel the inner face of which is provided with regularly spaced cavities 2 which are intersected by a transverse opening 3 extending through one side of said rim, said cavities being also provided withtransverse recesses 1 which aline with said openings 3. The rim is provided with a cushion or other tire 5.

The hub 6 is provided with a pair of plates 7 which are retained in spaced relation in said hub by means of the connecting bolts 8 which pass through side notches 9 of v sockets 10. Said sockets 10 are provided with transversely extending threaded openings 11 which are engaged by bolts 12 carried by said plates. Said sockets have their outer ends enlarged and provided with a flat outer bearing surface 13 and are interiorly threaded as indicated at 14 for the receipt of externally threaded cylinders l5, the inner ends 16 of which are closed. An

air bag 17, preferably sealed, is located in said cylinder l5, the outer surface of saidk bag being provided with a bearing plate 18 upon which the inner end of a hollow spoke 19 is mounted. The outer end ofsaid spoke is reduced and shaped to provide a pivot ear 20 adapted to be fttedwithin one of the ycavities 2 of the rim and held in pivotal en; gagement therewith by' means of a. pivot pin 21 preferably tapering, which is driven through the Vopening 3 of said rim, the pivot ear 2O and into the recess 4. A lock nut 22 is provided for each cylinder 15 which is adapted to be secured onto said cylinder and brought into binding engagement with the 65 flat bearing surface 13 of the socket 10.

It will be seen from the foregoing thatv the shocks and jars incidental to the rotation of the improved wheel will cause the spokes to slide in their cylinders and compress the bag 17 and thereby absorb said shocks and jars. Also through the described bolt and screw connection of the sockets with the hub plates, and the pivotal connection of the spokes with the rim, that said sockets will have a limited rocking movement which will compensate for the weight of the load carried by the vehicle which the improved wheels are supporting.

Another prominent feature of the inven-l tion is in the manner of connecting the parts of the improved wheel so that thefsame may be readily disassembled for the purpose of repair, replacement, or cleaning. It will bev seen that by releasing the nuts which hold the cylinders and sockets in engagement,

said cylinders may be screwed down into said sockets far enough to permit the spokes to be forcedfinto said cylinder so that their outer ends will clear their cavities after they have been released from the rim so that the spokes may be readily removed. After the spokes have been removed, V,the cylinders may be unscrewed from the sockets, and the sockets disengaged from the plates by re'- moving the screws and bolts.

What I claim as my invention is A wheel comprising a rim, a hub, plates carried by said hub, sockets fitted between saidV plates and provided with slots and threaded openings, a cushioning cylinder threaded openings, bolts connecting said In testimony whereof I, hereunto aHX my plates and passmg through sald slots, screws signature 1n presence of two W1tnesses.

Carried by said plates and engaging said SAMUEL E CHAPMAN carried by each socket, and a spoke sldably Vtnesses-z mounted in each cylinder and pvot-ally con- H. C. SCI-IROEDER, nested to said rim. F. P. SCHROEDER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

